W101 20m subs beating out WoW's 10m subs

what does it take to be a good MMO
WoW has 10-mil, W101 has 20+mil
what does it mean?
i checked out W101 and to be honest i liked it but why couldn't SWTOR, GW2, Rift manage to hit these numbers is it the family friendly aspect?

kids usually have a lot of free time to put on video games, but they usually lack focus. adults who work and take care of their families need things to be easier and require less playtime to achieve success. by being accessible, WoW pleases and wins both sides over it's competitors.

an adults only game will be a niche game.

a kids only game will be a niche game.

WoW is an "everybody" game, therefore it hit the MMO mainstream, attracting all sorts of players.

The more people you exclude by virtue of being 18+ the more people can't be subscribed to your game :U
Also it's just impossible for anyone but Blizzard to knock out WoW's market share, its main strength is that everyone already plays it

No fee, larger age group to harvest your addicts from, easier to gain access to, no buy in cost, being as close to a harry potter video game as possible when Harry Potter movies were coming to an end, being in the same age range as kids are when they typically start reading Harry Potter and lots of television advertisements all explain a 20 million REGISTERED users (instead of 20 million active users) feat of strength.

Its just not in the same dogfight as wow is with any other mmo.

I mean what 8-11 year old doesn't want to be a child wizard going to a school for wizardry?

Not only is the title/premise incorrect (Wizard 101 has 20 million registered accounts, which is far different from 10 million subscribers), but this is set up to start a game vs. game debate. Closing it down.